Drywall Calculate Calculate Square footage of the area, if you do not have it on hand Width ft. Length ft. sq ft. Square foot of coverage area; Drywall size; 4′ x 8′ 4′ x 10′ 4′ x 12′ 4′ x 11′ 4′ x 12′ 4′ x 13′ 4′ x 14′ 4′ x 15′ 4′ x 16′ Total Drywall . Ready-Mixed joint compound pounds Lightweight ready-mixed all purpose joint compound gallons Setting-Type (quick-drying) joint compound pounds Lightweight Setting-Type joint compound pounds Drywall Nails nails Drywall Screws screws Drywall Joint Tape feet Primer (to seal drywall) gallons Drywall Adhesive (29oz.tubes) tubes